Nailing machine



Re. 16,325 w. N. oEHM ET AL April 13 1926.

NAILING MACHINE Original Filed Dec. 2, 1920 2 Sheets-Sheet l d f J I u I l I i r 1,

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W. N. OEHM ET AL NAI LING MAcHiNE Original Filed Dec. 2, 1920 2 Sheets-Shed 2 Reissued Apr. 13, 1926.

Re. I 16,325

UNITED. nous -PA''IEM1 officg;

muuu-s Kontakt Il,y 1R8- Soriar flo; 00mm.

@"0 all' whom tmay comenzo: Be it =known'lhat we, WILLIAM andGomT POWELL, citizens ofthe United Simms sind Holland, respootiyoly, und 11e/ sx- 6 im of Michigan Gihy, ountyof Iis'Pp, l

' tod ptmclo, sushis@ ffunnil 24,-ocmnooted therewlth by means of a tube 25. The size of the and Stsolgdian, hawfiomilw cortain mw omis-w Mailing,Muahim` o'whjohe A1, -lS a specification, eillftfdiil the www@ drefwiogsf 1li@xincmfagA a fmftke any fshitging of thgsmdiipgwm pesmnently posxtaomn it iol; driving "a ovino, and toswurert'pidity @fop 'An i,1mbodifmont/,l of lofimemtion is illustratedf in the accompanying duawmgs, in

f Figi is alongibudlnal'seotionio the' mchine, partly iu oloiston, on, line flf--l oflig; 8;: f f

l Big. 2is'n-,sidlee1ewtionfofthe machine; fFig. 3 is wplan sootiohontihe line Bw?,V of

attached-to -th1estnl1be 13, normally holds the hammer in dented position.

A eod'tubo 23 enters the tube 13 iatorally for dolvriug nails Hmmm-and which :me ind' d'tube from n suitable 1e- #11118785 that tho'nails pass ,through 'I @d .South til descends ,itis arpiioii p rojnotinginto its paths vsufienb distante tozktaixyjengagevts head. Tis inkl lin milwgagng poibw by mms ein spnilg Si.

`AltripYai'rrnvs' iwotad `:L29 to ai; arm oeoutd to the p vot of thel'dog 26,-and prnjaects' intovtho path '9i a trip 31 Vcaried' by tino-of the ipull mds,'as 2. A's'the hamer is mond upwardly by Y the "aoton Yof :the Spring Mathe' trip '31 engages below they arm 28 amil turns the dog 26,'releasii1g the nail K2 and permitting itto drop into the tube 1-3. As ,thia'hammor is drawn down the trip 31 1 the, trip ami 28, turning it on its pivsotqflmd this'latter arm `is immediately retumdto its nenmvnlpostionby the'aotion of the opting B2. l

Wagthin'd lower coniracted end 14 of the tube 13mm, is-xslidinglypned n bushing s3, the vbore of which is sutableto allow the of g nail tmrodisoughwhileholding 1t upriht position. The downward movement oft e bushing 3%. is' limited by a, screw Stud B4, 'projting hrmngh a longitudinal dat in the'huhe- Seotion 14. As th machine' is osiionexifor the drivingn a mail the 'ng's mond upwardly a short distm-byiostongogunqnt with rvtho: floor and theently'ninbu of' the nailnow die of me tube 1'3. Apugumr-f M185, v iaopngnmc'hanmer, is to wlxegrisheflmtztm'mwupiss mdftaoadriivxetA as the ma is; "ihomils'etB-hasfailmted longitudimdmo Y n: i @mit Home@ @adn-wd is @by-2 5 is agedthe machine rests on the spot, the operator standing with one foot von-the pedal 16 and the other on the floor. He now takes a step forward, keeping one foot on the pedal, and then lifts the machine to the new position, at the same time releasing slightly the pressure on the edal so as to permit the springs 21, 21, to raise'the hammer and thus release a spike, which drops obliquely into the tube 13. During the forward movementI the free end of the hinged pedalis permitted to drag along the floor. At the new position the machine is drop d in place, and is there held against acci ental removal'by the claws 15, the bushing 33 being forced upwardly relative to the tube 14, thus straightening the pike so that it is ready to be driven into thev f oor.

The operator now presses the lever of the air controlling valve 12 with his thumb, and at the same time steps on the pedal 16, thus lowering the hammer land pressing the set into contact with the spike. The set is a1- lowed a small amount of play within the hammer barrel because of the recess 36and the head of the spike may therefore be driven by the air pressure slightly below the level of the Hoor without injury to the hammer. y

l The pressure on the pedal is released, and

another spike is automatically dropped into the tube 13 on the upward movement ofthe hammer. The operator a ain moves the machine to a position slight y in advance of the last one and then drops the machine in place, keeping his foot always on the pedal 16. It is found that by the use of this machine very rapid nailing can be accomplished, and it is of particular value in nailing theooring of cars, where heavy spikes are used and rapid operation is essential. The device is a unitary structure, all of whose parts combine in rendering the whole eilicient.

We claim as our invention- 1. In a nailing machine, in combination, a tube provided with a nail box at its lower end, a spring-retracted pneumatic hammer reciprocable iny the tube, and a. pedal -for advancing the hammer pivoted at one end to the hammer below said sprin and having its other end adapted to drag a ong the licor.

-2. A movable nailing machine comprising, in combination, a tube, as ring-retracted hammer in said tube, a hand e therefor, and a pedal for advancing the hammer pivoted thereto at one end and having its other end adapted to.dra`g aloi'ig'theflooi'.

3. A movable nailing machine comprising, in combination, a tube, a spring-retracted emmer reciprocable in the tube, and a pedal for advancing the hammer having one'` endadapted to drag along the door.

4. In a nailing device, in combination, a tube having a nail-positioning nipple, a r`spring-retrg'azted pneumatic hammer reciprocable in the tube, and a pedal for advancing the hammer` pivoted at one end to saidhammer and having its other end adapt-- ed to drag along the oor.

5. A movable nailing machine comprising,

in combination, a suitable frame, a springretracted hammer having a handle, and a pedal for advancing ythe hammer and having one end adapted to drag along -the Hoor when the machine is moved forward.

6. In a nailing machine, the combination of a frame, a pneumatic hammer slidably mounted on the frame, resilient means for holding the hammer in raised position, a pedal for lowering the hammer, and means independent of said hammer and its operating mechanism for conducting a nail to position beneath the hammer, said hammer being adapted to be given a plurality of reciprocations for driving each nail.

7. In a nailing machine, the combination of a ortable frame, a pneumatic hammer slidably mounted on the frame, resilient means for holding the hammer in raised position, means for lowering the hammer to operative position against the resistance of said resilient means for changing its zone of reciprocation, means for holding a nail in driving positionl beneath said hammer, said means being independent of the element into which the nail is to be driven, said frame including a passage leading to said nail-holding means, a normally closed gate in said passage, and a trip operated by the upward movement of said hammer in ,returning to inoperative position after driving a nail, for opening said gate.

8. In a nailing machine, the combination of a comparatively light, portab-le frame adapted to be moved about over a Hoor for driving nails therein, a pneumatic hammer slidably mounted on the frame, a resilient means for holding the hammer in raised position, means for lowering the hammer to operative position against the resistance of said resilient'means vfor changing its zone of reciprocation, means for holding a nail in driving osition beneath said hammer, said frame including a passage leading to said nail-holding means, a resiliently mounted gate controlling said passage,-and a trip movi with said hammer while the latter is moving to inoperative position after driving a nail, for opening said gate.

9. In a nailing machine, the combination of a tube, a pneumatic hammer slidably mounted in said tube, a spring for normally holding said hammer in raised inoperative position, means for lowering said hammer to operative position against the resistance of vsaid spring, means independent of the last named means and said spring, for operating the hammer to drive the nail, and means controlled by the movement of said hammer to inoperative position forl conducting a nail to driving position beneath saidvhammer.

v 10. In a portable nailing machine, the combination of a frame having means to support a nail in position to be driven, a power hammer constructed to deliver a plurality of blows in quick succession and slidably mounted on the frame above the nail supportin means, yielding means for normally hol ing the hammer in raised posit-ion, means for lowering the hammer, and means independent of said yielding means for operatmg the hammer to drive a nail.

11. In a portable nailing machine, the combination of a frame having means to sup ort a nail in position to be driven, a con uit leading from a position convenient to the hand of the operator to the nail supporting means, a power hammer constructed to deliver a series of blows in quick succession and slidablymounted on the frame, yielding means for normallyy holdin said hammer in raised position, means for lower ing hammer to change its zone of reciprocation, and means for operating said hammer.

12. In a portable nailing machine, the combination of means to support a nail in position to be driven, a power hammer constructed to deliver a series of blows in quick succession, means to yieldingly support the hammer above a nail in the nail supporting meansand adapted to permit the hammer to be lowered into driving engagement with the nail, and means to control the operation of the hammer.

` 13. In a portable nailing machine, the combination of means to support a nail in position to be driven, a power hammer constructed to deliver a series of blows in quick succession, means to yieldingly support the hammer above a nail in the nail supporting means and adapted to permit the hammer t nail and delivering it to the nail supportmg means.

14. In a floor nailing machine, the combination of means to support a nail in position to be driven, a power hammer, a nail set in said hammer constructed to deliver a series of blows in quick succession upon a nail in said supporting means, means to yieldingly support the hammer above a nail in the nail supporting means and adapted to permit the hammer to be lowered into dri ving engagement with the nail, means to control the operation of the hammer, means at the 'height convenient to the operators hand for receiving a nail and delivering it to the nail supporting means, and means to engage the floor to hold the machine in place during the driving operation.

15. In a nailing machine, the combination of means to support a nail in position to be driven, means including a power hammery for delivering a series of blows in quick succession on each nail, means to control the operation of the hammer, and means to grip the floor and prevent the machine from shifting its position while the hammer is in operation.

16. In a nailing device, the combination of a frame, a hammer slidably mounted on said frame, a nail set reciprocally mounted relatively to said hammer, and mechanism operated by the upward movement of said hammer for delivering a nail beneath said nail set to be driven thereby.

WILLIAM N. OEHM. GOMERT POWELL. 

